Calibration Intervals · 5 min read
Calibration Recall Systems That Survive Audits
Setting good intervals is pointless if nothing enforces them. A recall system is the machinery that turns intervals into action — and it is one of the first things an auditor probes.

Part of our guide to Calibration Intervals & Program Scheduling.
What a recall system does
A recall system tracks every controlled instrument, its calibration status, and its due date, and it warns you before due dates pass. Combined with clear status identification (labels, or restricted use), it ensures no instrument measures product while overdue. Many programs run this in dedicated calibration-management software; American Gage customers can track their equipment through our online portal.
Common failure modes
Recall systems fail in predictable ways: instruments that were never entered, "temporary" tools that escape the system, no owner for follow-up when a due date is missed, and no mechanism to physically prevent use of an overdue gauge. Close those gaps and the recall system does its job quietly. Leave them open and an auditor will find the overdue caliper before you do.

Common questions
What happens if an instrument is used past its due date?
It should trigger the same impact assessment as an out-of-tolerance finding: determine whether measurements taken while overdue can be trusted, and act on affected product. The recall system exists to prevent that scenario.
